Diestock



' and chasers having pins prdjectii1g from tl1eir 'c0rding 130 which way the chaser is facing chaser than the qther.

alignment with eacl1 other; and hence either sides and 0 pm may occupy either notch, enabling the chaser t0 be turned end for endas desired.

By locating the pins nearer one end of the si chaser than the other, the distance of the active beeth 32 from the axis is accordingly varied by this simple act 0f reversing the chaser. Whichever end of the chaser is ac tive, the thi*ust is eliectively received by the distant Wall 01t' the notches occupied by'the pins.

It Will be seen tl1at the chaser is held in a definite position by reason 0f a pin onthe chaser snugly engaging an opening in the solid integral frame of the die stock. This enables a very accu r'ate positi0ning 0f the chasers. The clamping of alle chasers' in plaoe ccupyihg the notches, and means for clamping the chasers against tl1e frame.

In testimony whereof5 I hereunto aflix my gnature.

-is made verysimply. and effectively. This the Walls 011 opposite sides0f the passage- V way, and narrow chasers adapted 130 stand 011 one of their narrow ezdges in the guides and having pins projecting laterally from their oppo'site wide fades, said pins occupying said notches.

2. In'a die stock,fhe combination of an annular frame having radial chaser guideways*open at bot-h ende, outwardly fac1ng chaser guiding space and perpendicular thereto, and chasers adapced to occupy the notches in Che frame o n opposite sid'eS of the guides and having rigid pins projecting from their opposite sides, said pins occupying the notches, and means bearing 011 the outer edge of the chasers t0 hold against the bottom 0f guiding space, the outer Walls of the notches receiving the radial thrust 011 the chasers.

3, In a die stock, the combination of a frame l1aVing radial chaser guides provided avith Walls par'allel to each other 011 their ad- ]acent faces, notches formed in the two Walls directly opposite each other and normal t0 the gui'ding space, and chasers witl1 eutting teeth 011 each end adapted to occupy'the gu1de face d in either direcuion, each chaser having pins projecting from each of its flat sides anddirectly opposite eaeh other, either p1n bemg adapted t0 occupy either noteh, ac-

and the pins being nearer' oneend offthei 4. In a die stock, the combination of a frame having radial chaser guide. formed by walls on oppo's1te sides of radial planes,

a notch in one of such alls o f euch guide at the side 0f tl1e guiding space, each notch bein open at the end which is at the t p of the Wall,

BRADFORD T. BORDEN. 

